سؤال 113

Which purchase has the lowest price per kilogram?

4.80 dollars for 1.2 kilogramsپاسخ درست
6.25 dollars for 1.25 kilograms
3.60 dollars for 0.8 kilogram
7.50 dollars for 1.5 kilograms

توضیح

The unit prices are 4.80 ÷ 1.2 = 4, 6.25 ÷ 1.25 = 5, 3.60 ÷ 0.8 = 4.5, and 7.50 ÷ 1.5 = 5 dollars per kilogram. Comparing total prices alone would wrongly favour 3.60 dollars even though its quantity is also smaller.

توضیح

ادامهٔ این آزمون